fix failing tests on master by creating questions through the user association in the tests, and updating the questions controller #create action
Merge branch 'master' into question-delete
fix bug where the user would be redirected to the wrong profile after deleting a question from their profile
redirect user to the root path instead of the profile path after deleting a question
fix bug where if a question is deleted, the user profile page would throw an error because the question that they have answered no longer exists